172246da4SFelipe Balbi /** 272246da4SFelipe Balbi * dwc3-pci.c - PCI Specific glue layer 372246da4SFelipe Balbi * 472246da4SFelipe Balbi * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com 572246da4SFelipe Balbi * 672246da4SFelipe Balbi * Authors: Felipe Balbi <balbi@ti.com>, 772246da4SFelipe Balbi * Sebastian Andrzej Siewior <bigeasy@linutronix.de> 872246da4SFelipe Balbi * 95945f789SFelipe Balbi * This program is free software: you can redistribute it and/or modify 105945f789SFelipe Balbi * it under the terms of the GNU General Public License version 2 of 115945f789SFelipe Balbi * the License as published by the Free Software Foundation. 1272246da4SFelipe Balbi * 135945f789SFelipe Balbi * This program is distributed in the hope that it will be useful, 145945f789SFelipe Balbi * but WITHOUT ANY WARRANTY; without even the implied warranty of 155945f789SFelipe Balbi * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 165945f789SFelipe Balbi * GNU General Public License for more details. 1772246da4SFelipe Balbi */ 1872246da4SFelipe Balbi 1972246da4SFelipe Balbi #include <linux/kernel.h> 2046a57283SStephen Rothwell #include <linux/module.h> 2172246da4SFelipe Balbi #include <linux/slab.h> 2272246da4SFelipe Balbi #include <linux/pci.h> 2372246da4SFelipe Balbi #include <linux/platform_device.h> 2472246da4SFelipe Balbi 25e3ec3eb7SFelipe Balbi #include <linux/usb/otg.h> 26d7078df6SFelipe Balbi #include <linux/usb/usb_phy_generic.h> 27e3ec3eb7SFelipe Balbi 288f317b47SHuang Rui #include "platform_data.h" 298f317b47SHuang Rui 3072246da4SFelipe Balbi /* FIXME define these in <linux/pci_ids.h> */ 3172246da4SFelipe Balbi #define PCI_VENDOR_ID_SYNOPSYS 0x16c3 3272246da4SFelipe Balbi #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd 33b62cd96dSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_BYT 0x0f37 3485601f8cSDavid Cohen #define PCI_DEVICE_ID_INTEL_MRFLD 0x119e 357d643664SAlan Cox #define PCI_DEVICE_ID_INTEL_BSW 0x22B7 36*84a2b61bSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30 37*84a2b61bSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_SPTH 0xa130 3872246da4SFelipe Balbi 3972246da4SFelipe Balbi struct dwc3_pci { 4072246da4SFelipe Balbi struct device *dev; 4172246da4SFelipe Balbi struct platform_device *dwc3; 42e3ec3eb7SFelipe Balbi struct platform_device *usb2_phy; 43e3ec3eb7SFelipe Balbi struct platform_device *usb3_phy; 4472246da4SFelipe Balbi }; 4572246da4SFelipe Balbi 4641ac7b3aSBill Pemberton static int dwc3_pci_register_phys(struct dwc3_pci *glue) 47e3ec3eb7SFelipe Balbi { 484525beebSFelipe Balbi struct usb_phy_generic_platform_data pdata; 49e3ec3eb7SFelipe Balbi struct platform_device *pdev; 50e3ec3eb7SFelipe Balbi int ret; 51e3ec3eb7SFelipe Balbi 52e3ec3eb7SFelipe Balbi memset(&pdata, 0x00, sizeof(pdata)); 53e3ec3eb7SFelipe Balbi 544525beebSFelipe Balbi pdev = platform_device_alloc("usb_phy_generic", 0); 55e3ec3eb7SFelipe Balbi if (!pdev) 56e3ec3eb7SFelipe Balbi return -ENOMEM; 57e3ec3eb7SFelipe Balbi 58e3ec3eb7SFelipe Balbi glue->usb2_phy = pdev; 59e3ec3eb7SFelipe Balbi pdata.type = USB_PHY_TYPE_USB2; 6013518673SHeikki Krogerus pdata.gpio_reset = -1; 61e3ec3eb7SFelipe Balbi 62e3ec3eb7SFelipe Balbi ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata)); 63e3ec3eb7SFelipe Balbi if (ret) 64e3ec3eb7SFelipe Balbi goto err1; 65e3ec3eb7SFelipe Balbi 664525beebSFelipe Balbi pdev = platform_device_alloc("usb_phy_generic", 1); 67e3ec3eb7SFelipe Balbi if (!pdev) { 68e3ec3eb7SFelipe Balbi ret = -ENOMEM; 69e3ec3eb7SFelipe Balbi goto err1; 70e3ec3eb7SFelipe Balbi } 71e3ec3eb7SFelipe Balbi 72e3ec3eb7SFelipe Balbi glue->usb3_phy = pdev; 73e3ec3eb7SFelipe Balbi pdata.type = USB_PHY_TYPE_USB3; 74e3ec3eb7SFelipe Balbi 75e3ec3eb7SFelipe Balbi ret = platform_device_add_data(glue->usb3_phy, &pdata, sizeof(pdata)); 76e3ec3eb7SFelipe Balbi if (ret) 77e3ec3eb7SFelipe Balbi goto err2; 78e3ec3eb7SFelipe Balbi 79e3ec3eb7SFelipe Balbi ret = platform_device_add(glue->usb2_phy); 80e3ec3eb7SFelipe Balbi if (ret) 81e3ec3eb7SFelipe Balbi goto err2; 82e3ec3eb7SFelipe Balbi 83e3ec3eb7SFelipe Balbi ret = platform_device_add(glue->usb3_phy); 84e3ec3eb7SFelipe Balbi if (ret) 85e3ec3eb7SFelipe Balbi goto err3; 86e3ec3eb7SFelipe Balbi 87e3ec3eb7SFelipe Balbi return 0; 88e3ec3eb7SFelipe Balbi 89e3ec3eb7SFelipe Balbi err3: 90e3ec3eb7SFelipe Balbi platform_device_del(glue->usb2_phy); 91e3ec3eb7SFelipe Balbi 92e3ec3eb7SFelipe Balbi err2: 93e3ec3eb7SFelipe Balbi platform_device_put(glue->usb3_phy); 94e3ec3eb7SFelipe Balbi 95e3ec3eb7SFelipe Balbi err1: 96e3ec3eb7SFelipe Balbi platform_device_put(glue->usb2_phy); 97e3ec3eb7SFelipe Balbi 98e3ec3eb7SFelipe Balbi return ret; 99e3ec3eb7SFelipe Balbi } 100e3ec3eb7SFelipe Balbi 10141ac7b3aSBill Pemberton static int dwc3_pci_probe(struct pci_dev *pci, 10272246da4SFelipe Balbi const struct pci_device_id *id) 10372246da4SFelipe Balbi { 10472246da4SFelipe Balbi struct resource res[2]; 10572246da4SFelipe Balbi struct platform_device *dwc3; 10672246da4SFelipe Balbi struct dwc3_pci *glue; 107b09e99eeSAndy Shevchenko int ret; 108802ca850SChanho Park struct device *dev = &pci->dev; 1098f317b47SHuang Rui struct dwc3_platform_data dwc3_pdata; 1108f317b47SHuang Rui 1118f317b47SHuang Rui memset(&dwc3_pdata, 0x00, sizeof(dwc3_pdata)); 11272246da4SFelipe Balbi 113802ca850SChanho Park glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL); 114734d5a53SJingoo Han if (!glue) 115802ca850SChanho Park return -ENOMEM; 11672246da4SFelipe Balbi 117802ca850SChanho Park glue->dev = dev; 11872246da4SFelipe Balbi 119f1c7e710SAndy Shevchenko ret = pcim_enable_device(pci); 12072246da4SFelipe Balbi if (ret) { 121802ca850SChanho Park dev_err(dev, "failed to enable pci device\n"); 122802ca850SChanho Park return -ENODEV; 12372246da4SFelipe Balbi } 12472246da4SFelipe Balbi 12572246da4SFelipe Balbi pci_set_master(pci); 12672246da4SFelipe Balbi 127e3ec3eb7SFelipe Balbi ret = dwc3_pci_register_phys(glue); 128e3ec3eb7SFelipe Balbi if (ret) { 129e3ec3eb7SFelipe Balbi dev_err(dev, "couldn't register PHYs\n"); 130e3ec3eb7SFelipe Balbi return ret; 131e3ec3eb7SFelipe Balbi } 132e3ec3eb7SFelipe Balbi 133124dafdeSSebastian Andrzej Siewior dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); 13472246da4SFelipe Balbi if (!dwc3) { 135802ca850SChanho Park dev_err(dev, "couldn't allocate dwc3 device\n"); 136f1c7e710SAndy Shevchenko return -ENOMEM; 13772246da4SFelipe Balbi } 13872246da4SFelipe Balbi 13972246da4SFelipe Balbi memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); 14072246da4SFelipe Balbi 14172246da4SFelipe Balbi res[0].start = pci_resource_start(pci, 0); 14272246da4SFelipe Balbi res[0].end = pci_resource_end(pci, 0); 14372246da4SFelipe Balbi res[0].name = "dwc_usb3"; 14472246da4SFelipe Balbi res[0].flags = IORESOURCE_MEM; 14572246da4SFelipe Balbi 14672246da4SFelipe Balbi res[1].start = pci->irq; 14772246da4SFelipe Balbi res[1].name = "dwc_usb3"; 14872246da4SFelipe Balbi res[1].flags = IORESOURCE_IRQ; 14972246da4SFelipe Balbi 1509755449dSHuang Rui if (pci->vendor == PCI_VENDOR_ID_AMD && 1519755449dSHuang Rui pci->device == PCI_DEVICE_ID_AMD_NL_USB) { 1529755449dSHuang Rui dwc3_pdata.has_lpm_erratum = true; 1539755449dSHuang Rui dwc3_pdata.lpm_nyet_threshold = 0xf; 1549755449dSHuang Rui 1559755449dSHuang Rui dwc3_pdata.u2exit_lfps_quirk = true; 1569755449dSHuang Rui dwc3_pdata.u2ss_inp3_quirk = true; 1579755449dSHuang Rui dwc3_pdata.req_p1p2p3_quirk = true; 1589755449dSHuang Rui dwc3_pdata.del_p1p2p3_quirk = true; 1599755449dSHuang Rui dwc3_pdata.del_phy_power_chg_quirk = true; 1609755449dSHuang Rui dwc3_pdata.lfps_filter_quirk = true; 1619755449dSHuang Rui dwc3_pdata.rx_detect_poll_quirk = true; 1629755449dSHuang Rui 1639755449dSHuang Rui dwc3_pdata.tx_de_emphasis_quirk = true; 1649755449dSHuang Rui dwc3_pdata.tx_de_emphasis = 1; 1659755449dSHuang Rui 1669755449dSHuang Rui /* 1679755449dSHuang Rui * FIXME these quirks should be removed when AMD NL 1689755449dSHuang Rui * taps out 1699755449dSHuang Rui */ 1709755449dSHuang Rui dwc3_pdata.disable_scramble_quirk = true; 1719755449dSHuang Rui dwc3_pdata.dis_u3_susphy_quirk = true; 1729755449dSHuang Rui dwc3_pdata.dis_u2_susphy_quirk = true; 1739755449dSHuang Rui } 1749755449dSHuang Rui 17572246da4SFelipe Balbi ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); 17672246da4SFelipe Balbi if (ret) { 177802ca850SChanho Park dev_err(dev, "couldn't add resources to dwc3 device\n"); 178f1c7e710SAndy Shevchenko return ret; 17972246da4SFelipe Balbi } 18072246da4SFelipe Balbi 18172246da4SFelipe Balbi pci_set_drvdata(pci, glue); 18272246da4SFelipe Balbi 1838f317b47SHuang Rui ret = platform_device_add_data(dwc3, &dwc3_pdata, sizeof(dwc3_pdata)); 1848f317b47SHuang Rui if (ret) 1858f317b47SHuang Rui goto err3; 1868f317b47SHuang Rui 187802ca850SChanho Park dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask); 18872246da4SFelipe Balbi 189802ca850SChanho Park dwc3->dev.dma_mask = dev->dma_mask; 190802ca850SChanho Park dwc3->dev.dma_parms = dev->dma_parms; 191802ca850SChanho Park dwc3->dev.parent = dev; 19272246da4SFelipe Balbi glue->dwc3 = dwc3; 19372246da4SFelipe Balbi 19472246da4SFelipe Balbi ret = platform_device_add(dwc3); 19572246da4SFelipe Balbi if (ret) { 196802ca850SChanho Park dev_err(dev, "failed to register dwc3 device\n"); 197802ca850SChanho Park goto err3; 19872246da4SFelipe Balbi } 19972246da4SFelipe Balbi 20072246da4SFelipe Balbi return 0; 20172246da4SFelipe Balbi 202802ca850SChanho Park err3: 20372246da4SFelipe Balbi platform_device_put(dwc3); 20472246da4SFelipe Balbi return ret; 20572246da4SFelipe Balbi } 20672246da4SFelipe Balbi 207fb4e98abSBill Pemberton static void dwc3_pci_remove(struct pci_dev *pci) 20872246da4SFelipe Balbi { 20972246da4SFelipe Balbi struct dwc3_pci *glue = pci_get_drvdata(pci); 21072246da4SFelipe Balbi 211f28c42c5SPeter Chen platform_device_unregister(glue->dwc3); 212e3ec3eb7SFelipe Balbi platform_device_unregister(glue->usb2_phy); 213e3ec3eb7SFelipe Balbi platform_device_unregister(glue->usb3_phy); 21472246da4SFelipe Balbi } 21572246da4SFelipe Balbi 216782df20cSJingoo Han static const struct pci_device_id dwc3_pci_id_table[] = { 21772246da4SFelipe Balbi { 21872246da4SFelipe Balbi PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, 21972246da4SFelipe Balbi PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), 22072246da4SFelipe Balbi }, 2217d643664SAlan Cox { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), }, 222b62cd96dSHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), }, 22385601f8cSDavid Cohen { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), }, 224*84a2b61bSHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), }, 225*84a2b61bSHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), }, 2269755449dSHuang Rui { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), }, 22772246da4SFelipe Balbi { } /* Terminating Entry */ 22872246da4SFelipe Balbi }; 22972246da4SFelipe Balbi MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); 23072246da4SFelipe Balbi 231fb74d282SJingoo Han #ifdef CONFIG_PM_SLEEP 23268907a77SFelipe Balbi static int dwc3_pci_suspend(struct device *dev) 23368907a77SFelipe Balbi { 23468907a77SFelipe Balbi struct pci_dev *pci = to_pci_dev(dev); 23568907a77SFelipe Balbi 23668907a77SFelipe Balbi pci_disable_device(pci); 23768907a77SFelipe Balbi 23868907a77SFelipe Balbi return 0; 23968907a77SFelipe Balbi } 24068907a77SFelipe Balbi 24168907a77SFelipe Balbi static int dwc3_pci_resume(struct device *dev) 24268907a77SFelipe Balbi { 24368907a77SFelipe Balbi struct pci_dev *pci = to_pci_dev(dev); 24468907a77SFelipe Balbi int ret; 24568907a77SFelipe Balbi 24668907a77SFelipe Balbi ret = pci_enable_device(pci); 24768907a77SFelipe Balbi if (ret) { 24868907a77SFelipe Balbi dev_err(dev, "can't re-enable device --> %d\n", ret); 24968907a77SFelipe Balbi return ret; 25068907a77SFelipe Balbi } 25168907a77SFelipe Balbi 25268907a77SFelipe Balbi pci_set_master(pci); 25368907a77SFelipe Balbi 25468907a77SFelipe Balbi return 0; 25568907a77SFelipe Balbi } 256fb74d282SJingoo Han #endif /* CONFIG_PM_SLEEP */ 25768907a77SFelipe Balbi 25868907a77SFelipe Balbi static const struct dev_pm_ops dwc3_pci_dev_pm_ops = { 25968907a77SFelipe Balbi SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume) 26068907a77SFelipe Balbi }; 26168907a77SFelipe Balbi 26272246da4SFelipe Balbi static struct pci_driver dwc3_pci_driver = { 2630949e99bSFelipe Balbi .name = "dwc3-pci", 26472246da4SFelipe Balbi .id_table = dwc3_pci_id_table, 26572246da4SFelipe Balbi .probe = dwc3_pci_probe, 2667690417dSBill Pemberton .remove = dwc3_pci_remove, 26768907a77SFelipe Balbi .driver = { 268fb74d282SJingoo Han .pm = &dwc3_pci_dev_pm_ops, 26968907a77SFelipe Balbi }, 27072246da4SFelipe Balbi }; 27172246da4SFelipe Balbi 27272246da4SFelipe Balbi MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); 2735945f789SFelipe Balbi MODULE_LICENSE("GPL v2"); 27472246da4SFelipe Balbi MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer"); 27572246da4SFelipe Balbi 27695656336SGreg Kroah-Hartman module_pci_driver(dwc3_pci_driver); 277